Contemporary Seasons

Contemporary Seasons - Page Text Content

S: Seasons of Change

FC: The Nervous System! By: Maddie Thwaite PD: 2

1: The Cerebellum | The cerebellum is located towards the back side of the brain next to the medulla oblongata. It's involved in the coordination of the motor movement, and balance. It also receives information from the balance system from the inner ear, sensory nerves, and visual systems. The cerebellum is a very important part of the brain. Without it, you wouldn't be able to have any coordination, or balance. Memory is also stored in the cerebellum, as well as learning skills.

2: The Cerebrum! | The cerebrum is the largest part of the brain, and its functions are imagination, thoughts, judgement, and decision. It is divided into right and left hemispheres. The right side controls the left side of the body, and the left side controls the right side of the body. The cerebrum sends messages to the body to tell the body what it is thinking, and the actions. 2/3 of the brain is taken up by the cerebrum, and it's definitely one of the most important parts of the brain! Without it, you wouldn't be able to talk, think, speak, etc.

3: The Medulla Oblongata! | The medulla oblongata's functions are, control of autonomic functions that include, breathing, digestion, heart and blood vessel functions, swallowing and sneezing. It also controls relay of nerve signals between the brain and spinal cord, and the coordination of body movements. It's also an important part of the brain. You wouldn't be able to live without your medulla oblongata.

4: The Spinal Cord! | The spinal cord is another important part of the nervous system. It consists of little discs that are in the spinal cord. It allows things to send messages up the spinal cord and up to the brain, and reflexes. For example, if you put your hand on a hot burner, it sends a message from your hand to the spinal cord and up to the brain to make sure it gets your hand off. It carries millions and millions of little nerve fibers, and sends them throughout the body. Without your spinal cord, you wouldn't be able to walk, or do pretty much anything.

5: Neurons! | Neurons are made to send information throughout the body. They have 3 basic parts, the axon, cell body and dendrites. The cell body is the center or "nucleolus" of the neuron, and carries the DNA. The axons are a long cable- like cell that carries a message along the length of the cell. Also, the dendrites look like branches that branch off the cell body, and allows the neurons to communicate with other neurons.They can be found on either end of the neuron.

6: Factors That Effect The Nervous System! | There are many different diseases that can effect the nervous system. One of those diseases is MS (Multiple Sclerosis) It's caused by damage to the myelin sheath. The myelin sheath protects the covering of the nerve cells. When it becomes damadged, and everything slows down, or stops. As you get older, it becomes alot more serious, and the longer you have it, the more it shuts down your body to the point where it's hard to move, or walk. It also sometimes leads to death.